Receiving device and receiving method
OwnerTakenobu Arima, Kazuyuki Miyainventors
Life of this patent
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Abstract
An angle detection circuit 202 detects the phase component of an in-phase-added pilot signal. A phase computation circuit 203 performs phase computation processing using the phase component of the in-phase-added pilot signal and a pilot block weight coefficient to obtain a channel estimate phase component. An absolute value computation circuit 204 detects the amplitude component of the in-phase-added pilot signal. An amplitude computation circuit 206 adds the amplitude components multiplied by pilot block weight coefficients to obtain a channel estimate amplitude component. A vector conversion circuit 207 converts the obtained phase component and amplitude component to a vector to obtain a channel estimate.
Claims10
A receiving apparatus comprising:
- an in-phase adder that performs in-phase addition of a pilot signal in a received signal to calculate an in-phase addition value for every-plurality of pilot symbols;
- a component calculator that performs weighted addition using the amplitude component of the calculated in-phase addition value to calculate a channel estimate amplitude component, and performs weighted addition using the phase component of the calculated in-phase addition value to calculate a channel estimate phase component;
- and
- a channel estimate generator that generates a channel estimate using the calculated amplitude component and phase component.
A communication terminal apparatus provided with a receiving apparatus, said receiving apparatus comprising:
- an in-phase adder that performs in-phase addition of a pilot signal in a received signal to calculate an in-phase addition value for every plurality of pilot symbols;
- a component calculator that performs weighted addition using the amplitude component of the calculated in-phase addition value to calculate a channel estimate amplitude component, and performs weighted addition using the phase component of the calculated in-phase addition value to calculate a channel estimate phase component;
- and
- a channel estimate generator that generates a channel estimate using the calculated amplitude component and phase component.
A base station apparatus provided with a receiving apparatus, said receiving apparatus comprising:
- an in-phase adder that performs in-phase addition of a pilot signal in a received signal to calculate an in-phase addition value for every plurality of pilot symbols;
- a component calculator that performs weighted addition using the amplitude component of the calculated in-phase addition value to calculate a channel estimate amplitude component, and performs weighted addition using the phase component of the calculated in-phase addition value to calculate a channel estimate phase component;
- and
- a channel estimate generator that generates a channel estimate using the calculated amplitude component and phase component.
A receiving method comprising:
- an in-phase adding step of performing in-phase addition of a pilot signal of a received signal to calculate an in-phase addition value for every plurality of pilot symbols;
- a component calculating step of performing weighted addition using the amplitude component of the calculated in-phase addition value to calculate a channel estimate amplitude component, and performing weighted addition using the phase component of the calculated in-phase addition value to calculate a channel estimate phase component;
- and
- a channel estimate generating step of generating a channel estimate using the calculated amplitude component and phase component.
Dependencies are inferred from the claim text.